Brush machine



W. D. LIPPS BRUSH MACHINE Dec. s, 1931.

Filed OCT.. 4, 1929 9 Sheets-Sheet l I l l Dec. 8, 1931. w. D. I IPPSv 1,835,507

BRUSH'MACHINE Filed Oct. 4, 1929 9 Sheets-Sheet 2 Dec. 8, 1931.

W. D. LIPPS BRUSH MACIINE Filed Oct. 4, 1929 9 sheets-sheet 5 w. D. LIPPS BRUSH MACHINE Dec. 8, 1931.

9 sheets-sheet 5 Filed oct. 4, 1929 Dec. 8, 1931. w. D. LIPPS 1,835,507

BRUSH MACHINE F11ed not. 4, 1929 9 Sheets-Sheet e W. D. LIPPS BRUSH MACHINE Dec. 8, 1931.

9 Sheets-Sheet 7 dFiled Oct. 4, 1929 Dec. 8, 1931. w. D. LlPPs BRUSH MACH INE Filed Oct. 4, 1929 9 Sheets-*Sheet 8 Q09 2.06 I Q06 l )A L JJ- 105 10.9

Dec. 8, 1931. W. D. LIPPs 1,835,507

BRUSH MACHTNE Filed Oct. 4, 1929 9 Sheets-Sheet 9 Patented Dec. 8, 1931 .UNITED Srl-"7ATSr PATENT OFFICE WILLIAMS D. LIPPS, OF FREDERICK, MARYLAND, ASSIGNOR TO X FIBRE BRUSHl COM- PANY, INC.,` 0F NEW YORK, N. Y., A CORPORATION OF DELAWARE :BRUSH MACHINE` Application led October 4, 1929;

This invention relates to machines for making brushes; more particularly the type of so-called pinbrush wherein the bristles consist of headed Wires which extend through and are supported by a sheet of elastic material of appropriate contour having its edge confined in an undercut recessv of corresponding form in the brush back, thus presenting a convex elastic base from which the wires or pins diverge.

An object of the present invention is to provide a machine embodying automatically operatingV mechanism whereby the headed wires can be rapidly and accurately applied to and throughout the area of the elastic backs.

Another object is to provide means whereby blank backs can be readily mounted on the machine in position to receive the pins,

2Q which means can be as readily removed from the machine when the backs have been supplied with pins.

Another object is to provide a back supporting carriage' of novel construction, in

combination with simple and efficientmeans for imparting variable transverse and longitudinal movements to the carriage.

Another object is to provide novel pin setting means in co-operative relation to pindriving mechanism whereby the pins are effectively driven into the underlying back or backs at points determined by the variable path of the carriage.

Another object is to provide novel means for feeding the pins in an orderly manner from a source of pin supply and accurately positioning them in the pin setting means.

Another object is to provide means whereby the operation of the carriage and the pindrivino' mechanism is arrested when a back or backs have been fully supplied with pins.

Another object is to provide supplemental means,` under the control of the operatorl whereby the carriage can be readily set at the starting point preparatory to the pindriving operation on another back or backs supplied to the machine.

With these and other objects in View my invention comprises features of novelty and combinations of parts, which, in a preferred Serial No. 397,189.

form, will be hereinafter described; the scope of the invention then being defined the appended claims.

Inthe drawings- Figure 1 is a front elevation of a pin brush mach-ine embodying a form of my invention.Y

Fig. 2 is a partial rearl elevation of the machine.

Fig. 3 is a right end elevation thereof.

F ig. 4 is a left end elevation of the same.

Fig. 5 is a horizontal section of the machine,` as on the line 5-5 of Fig. 1.

Fig. 6 is a partial plan of the machine.

Fig. 7 is a transverse vertical section through the bed or table ofthe machine, the work supporting carriage, the pin feeding and driving mechanism, the cam shaft with its clutch-controlled continuously driven pulley, and other connections, as on the line 7-7 of Fig. 1.

Fig. 8 is a transverse section of clutch and brake devices for the pulley and its shaft.

Fig. 9 is a detail, in perspective, of the co-acting members of the clutch.

Fig. 10 is a perspective Viewy of the removable tray structure for supporting a plurality of elastic brush. backs into which the brushpins are driven.

Fig. 11 is a plan of one of the brush backs.

Fig. 12 is a View 'of a back with the pins inserted therein.

Fig. 13 is a plan of a pin supply tray and its longitudinally grooved feed roll, together with the inclined pin-guide bars, andV adjuncts.

Fig. 14 is a vertical section through the pin supply tray, the feed rollV therein, and the receiving ends of the pin guide bars, as on the line 14--14 of Fig. 13.

Fig. 15 is a detail of one of the spaced discharge portions of the-pin supply tray, showing in such portion a depression and slot foi` positioning a pin for its proper entry in the slot of the adjacent inclined guide bar.

` Fig. 16 is a detail of the lower end of a pin guide bar, showing its support, and a member for deflecting misplaced pins from the top of the bar.

Fig. 17 is a plan of the lower end of a pinguide bar, and a portion of a reciprocative cut-olf bar in position to receive the leading pin from the guide bar.

Fig. 18 is a similar view showing the cutolf bar positioned to interrupt the pin feed from the guide bar. Fig. 19 is an elevation of one of the pin-setting heads showing portions of an associated pin supply tube and pin driving plunger, the latter being represented in its down stroke as acting upon the head of a brush pin supported in the head.

Fig. 20 is a longitudinal section of the pin setting head and adjuncts, showing the relation of the head to the elastic brush back dnring the act of inserting a pin in the latter, said back and its supporting tray being in section.

Fig. 21 is a transverse section of the pin setting head, as on the line 2121 of Fig. L9.

Figs. 22 and 23 are transverse sections through one of the inclined guide bars for the pins, as on the lines 22-22 and 23-23 respectively of Fig. 7.

Referring to the drawings, 25 designates the supporting frame, including a bed or table 26, and 27 designates a horizontal shaft which has its bearings in the frame and is driven from a suitable source of power. In the present instance this shaft has fast thereon a pulley 28 which is operatively connected by means of a belt 29 with a smaller pulley 30 on the shaft 31 of an electric motor 32.

Loose on the shaft 27 is an intermittently rotatable pattern wheel 33 having on its respective sides cam segments 34, 35 which are peripherally formed and arranged to actuate suitable connections which determine the various horizontal positions of a carriage C that supports elastic backs D of proper contour in which the brush pins E are inserted. In the present instance the pattern wheel is allixed to the hub of a large gear wheel 36 with which meshes a pinion 37 fast on the inner end of a short shaft 38 at the adjacent end of the frame 25. Fast on the outer projecting end of the shaft 38 is a ratchet wheel 39 with which engages a pawl 40 on the upstanding arm of a bell crank lever 41 loose cn the shaft 38, whereby when the lever is oscillated the ratchet is intermittently rotated and step-bystep movements are thus imparted through the gearing to the pattern wheel. (See Figs. l and The lever 41 is connected by means of an adjustable link 42 to a bar V43 havingl a. slotted head portion 44 which is guided on one end of an upper' horizontal shaft 45. This shaft 45 has its bearings in rearwardly eX- 'tending brackets 46 on a bridge frame 47 on the table 26, and is equipped with a pulley 48 which, by means of abelt 49, is connected with and continuously driven from a pulley 50 fast on the shaft 27.

The pulley 48 andnshaft 45 can be con-- nected at will by the manual operation of a suitable clutch, thereby continuously rotating the shaft 45, which clutch after a stated period is automatically actuated to release the pulley through instrumentalities under the control of the pattern wheel, as will presently appear.

Fast on one end of the shaft 45 adjacent the head of the bar 43 is a suitable cam 49 on the periphery of which rides a roll 50 on the head, said roll being held in operative contact with the cam by the action of a spring 51 which is connected to the bar and to a stud at the end of the table. On the op posite end of the shaft 45 is a crank 52 which is connected by means of a link 53 to an arm 54 fast on a rock shaft 55 which has its bearings in brackets 56 on the bridge frame 47. A series of forwardly-extending arms 57, (Figs. 6 and 7) arranged in spaced relation to each other are affixed at their inner ends to the rcckeshaft 55, their outer ends being jointed, as at 58, to a corresponding series of pin-driving plungers 59 which are vertie cally-reciprocative in guide heads 60 supported by brackets 61 extending from the bridge frame, and which plungers have slender driving portions 62 which reciprocate in complementary pin setting heads 63 also supported by the brackets 61 directly above the respective elastic backs into which the pins are driven, as will be hereinafter described.

During the rotation of the shaft 45, when the pulley 48 is clutched thereto, the cam 49 and spring 51 co-act to effect vertical reciprocation of the bar 43, thereby oscillating the pawl-lever 40 and effecting the described intermittent rotation of the ratchet wheel 39 and at the same time the rock-shaft 55 is actuated to effect the vertical reciprocation of the pin driving plungers.

rlhe clutch mechanism for the pulley 48 is as follows: Fast on the hub of the pulley is a clutch member comprising a head 620 having on its outer face a pair of spaced arcuate blocks 630 with either of which is adapted to co-act a tooth 64 on one arm 65 of a curved clutch lever which is pivoted, at 66, to a brake disk 67 fast on the shaft 45, the longer arm y68 of the clutch lever curving` gradually outward as shown. (See Figs. 7, 8 and 9).

A suitably-disposed spring 69 coiled about a pin 70 on the disk 67, bears against the longer arm 68 of the clutch lever, thus forcing said arm outward and maintaining the tooth 64 of the shorter arm in engaging relation to one or the other of the blocks 630. Thus the pulley 48 is clutched to the shaft. Vhen, however, the lever arm 68 is forced inward, against the action of the spring 69, by Contact with a suitable abutment, the tooth 64 is freed from the opposing block, thus releasing the pulley.

The abutment is automatically movable into the path of the longer arm of the clutch lever at stated periods, and is movable out of such path by manually operative devices. ln the present instance this abutmentcomprises a bolt-like member 71 which is slidably mounted in a depending bearing 72 on a downward extension 73 of one of the brackets 46.

The bolt,v as it may be termed, is laterallyslotted as at 74, to receive an upstanding latch i'inger 7 when the bolt is retracted from the path of the clutch lever', thus temporarily locking the retrz. ced bolt. This finger constitutes one ot the arms of a three-armed latchA lever 7G which is loose on a shaft 77 having its bearing in the downward bracket extension, the lever and finger being maintained normally in locking position by suitably-disposed spring 770. A depending arm 78 of the lever extends into the path ot the upper arm of an inclined lever 79 which is tulcrumed, as at 80, on a bracket 81 on the rear ot the table, the lower arm ot which lever 71 is, in turn, jointed, as at 82,` to a similarly inclined lever 88 which is also fulcruined, as at 84, on the bracket 81. The lower arm or this lever 83 extends adjacent one side ot the pattern wheel and into the path of a suitably-located tappct 85 on the latter.

The third arm 8G of the latch lever 76 extends over one arm 87 oiI a three-armed lever head 88 tast on a shaft 89 which extends at right angles te the shaft 77, and has its bearings at the irontof the bracket extension 78. Y

Another arm 90 oi the leverv head 88 eX- tends upward and is longitudinally slotted, as at 91, to receive a laterally-projecting pin 92 on the abutment bolt 7l, the wall of the bearing 72 being slotted, at 93, for the free passage of the pin. A torsional spring 940 attached at its respective endsI to the bracket extension and the arm 90 tends normally to urge the latter and therewith the abutment bolt toward the path of the longer arm of the clutch lever. The third 94 ot the iever head 88 has a pin and slot connection 95 with a pendant arm 9G which is pivoted at 97 to the rearwardly extended weighted arm 98 of a brake lever 99 which is pivoted at 100 to the adjacent bracket 4G, the acting arm of the brake lever being curved to conform with the periphery of the brake disk 67 and being lined with leather 101 or other frictional material.

The inner end ot the shaft 89 has aixed thereto an arm 102 which is connected by means oit a. link 108 with a crank 104 on the inner end of a rod 105, which rod is supported in bearings 10G beneath the table and eX- tends to the front of the latter where the rod is equipped with a. suitable operating handle 107;

During the pin inserting operation, the pulley 48 is'clutched to the shaft 45 and the brake released, the abutment bolt 71 being 55 held in retracted position by the latch tinger 75- As the pattern wheel approaches the:

limit of a rotation, preparatory to the inserti-on. oi" the final pin in each elastic back, the tappet 85 abuts against the opposing lever arm 83, thereby swinging the jointed levers in a. manner to cause the upper lever 79 to bear against the depending lever arm 78 of the latch head and disengage the latch lingerof the latter from the slot of the abutment bolt 71, against the action of the spring 770, thus releasing the bolt. Coincidentally, the arm 86 of the latch head is raised and the upstanding slotted arm 90- of the lever 88 is urged laterally by the action thereon of the spring 940, thus moving the abutment bolt 71 endwise and into the path of the clutch-arm 68 and el'lecting the unclutching of the pulley 48. At the same time the arm 94 of the lever 88 is swung downward in its slot connection with the link 96, thus permitting the weighted portion ot' the brake lever to apply the acting arm thereof to the brake disk 67 on the shaiit 45. Hence the rotation of the sha-tt 45 and perforce the operation of the pattern wheel and the pin-setting plunger-s are stopped until the pulley is again unclutched and the brake released by the manual operation of the handle 107 of the rod 105. Y

The carriage C is mounted on the table 26 for transverse and longitudinal adjustment thereon directly beneath the pin setting heads 63. This carriage is adapted to receive and support a tray structure containing a plurality ot spaced-apart elastic backs D, usually elliptical in form, into which backs the head-ed wires or pins E are vertically driven from above, the respective backs by virtue or various denite movements of the carriage, being` properly positioned tol receive and support the pins throughout the ei'ective area of each back.

The tray structure, which is most clearly seen. in 10, comprises a rectangular mctalb-ed plate 108 having fixed thereon a. series of spaced open plates 109, each substanti ally equal in depth to the thickness of a back D. The opening in each plate 109 conforms with the contour of the back D and affords in conjunction with the plate 108 a recess 110 which snugly receives the back.

The portions of the bed plate 108 forming the bottoms oli the respective recesses are foraminated as shown, the orifices Z of each bottom being in staggered relation correspond ingly with the order in which the pins are to be inserted in a back, and each orilice being adapted to permit the free passage there# through of the inserted brush pin. The bed plate 108 is equipped with a hinged cover 111 having openings 112 therein similar in contour and arrangement to but of slightly less area than the recesses 110, so that when the backs D are seated in the recesses and the cover 111 is closed7 the margins of such lbacks lrio lreo

are efectually clamped in place. The bed plate 108 of the tray structure is provided with a suitable latch 113 shaped to engage the cover plate and hold it in clamping relation to the backs. The plate 108 is also provided with suitable hand-holds whereby the tray structure can be readily handled.

In the present instance the carriage C (Figs. 1, 5, 6 and 7 comprises two associated rectangular frames, whereof the frame m is movable transversely of the table and the frame y longitudinally thereof. The frame consists of two spaced parallel rails 114, 115 connected by cross-bars 116 to form a rectangular skeleton structure, whereof one of the rails is slidably fitted in a channeled cross-bar 117 on the table while the other rail rests slidably on the table. The frame y consists of a longitudinal plate 118 having on its top, at its forward edge, a bar 119 constituting a hacker member, and having on its bottom, parallel therewith, a forwardly-projecting bar 120 constituting a supporting ledge. The plate 118 and bar 120 are provided on their undersides with rollers 121 which are arranged to embrace and move in contact with the rear cross-bar 116 of the frame a'. Fast to one end of the plate 118, adjacent the rear bar 116, is a forwardly extending bar 122 terminating in an angle member 123 carrying a roller 124 which rests upon a lateral track 125 on the forward crossbar 116 of the frame By this const-ruction it will be seen that the frame y has capacity for movementl longitudinally of the frame m, and at the same time partakcs of any transverse movement of the latter frame.

The bed-plate 108 of the tray structure in which the backs D are contained is provided with suitably-disposed apertures 127, which register with and receive upstanding studs 126 on the ledge bar 120 (Figs. 5 and 7 when the structure is imposed on the carriage with its rearward edge resting upon the ledge bar and against the backer bar 119 of the frame y, and with its forward portion resting upon the adjacent bar 11G of the frame Thus the tray structure, with its contained backs, is firmly and accurately supported on the carriage so as to partake of its various movements transversely and longitudinally of the table.

The carriage frame 7/ is held normally in its extreme outward position to the left, as seen in Figs. 5 and 6) by means of a retracting spring 128 which is secured to the plate 118 of the frame 7,/ and to the rail 114 of the carriage frame m, and the latter frame, together with its companion. is normally held in an extreme rearward position by means of a pendant weight 129 on rope or cable 130 which, passing about a suitably-disposed sheave 131, is connected to the inner end of the rail 115 of the carriage frame The operative connections between the carriage and the pattern wheel will now be described, reference being had to Figs. 1, 2, 3, 4 and 7 of the drawings.

Loose on a fixed shaft 132 supported by the framework are a pair of up-standing rock-arms 133, 134 which lie adjacent the respective cani elements 34, 35 of the pattern wheel and are provided with laterally projecting studs or rolls 135 which bear against the respective peripheral cam surfaces. The upper end of the arm 133 has a pin and slot connection 136 with a depending arm 137 fast on a horizontal reciprocative bar 138 which is supported in suitable bearings beneath the table so as t0 be reciprocable transversely of the latter. Fast on the inner end of bar 138 is an upstanding arm 139 which is pivotally connected by means of a link 140 with the rail 115 of the carriage frame m, and hence during the rotation of the pattern wheel the arm 133 is actuated by the adjacent cam surface of the wheel in opposition to the action of the weight 129, in a manner to effect the variable reciprocation of the bar 138 and a corresponding movement of said carriage frame.

The upper end of the arm 134 is pivotally connected by means of a ball and socket member 141 with an angular bracket extension 142 on one arm of a horizontal lever 143 which is pivoted, as at 145, on a depending boss on the table, a retracting spring 146 being interposed between the arm and the bracket to maintain the flexible integrity of the oint connection. The other arm of this lever 143 is longitudinally slotted, as at 147, to receive a stud or roll 148 on an arm 149 fast on the lower end of a vertical pivot pin 150 mounted on the table. This arm 149 constitutes one member of a bell-crank, the other member 151 whereof is affixed to the upper end of the pivot pin and is provided with a roll 152 which bears against the forwardly extending bar 122 of the carriage frame y. Hence during the rotation of the pattern wheel the arm 134 is actuated by the Opposing cam surface of the wheel in opposition to the force of the spring 128 in a manner to effect the variable vibration of the crank arm 151 against the opposing bar 122 of the frame y, thus producing a corresponding movement of the latter.

The respective peripheral cam surfaces of the pattern wheel are so formed and related that the associated carriage frames are simultaneously actuated in such manner that the resultant of the two motions is imparted to the back supporting tray on the carriage, thus correspondingly shifting the series of backs with relation to the central vertical planes of the respective pin setting heads and in consequence permitting the insertion of the pins at various predetermined points throughout the areas of the respective backs.

In Fig. 12 is shown a back D with the pins E inserted therein. In the operation of inscrtin' the pins, the back is positioned to receive the vfirst pin at one end of the back, as indicated at 1, and the back is thereafter successively moved from point to point in paths, as indicated by the dotted lines, until tl pin 2 adjacent the opposite end of the This done the back is advanced step-by-step for the insertion et a. succession o' outer rows of pins 3 until the point 4 for the insertion of the iinal pin is reached. At this point the lateral tappet 85 on the pattern wheel abuts against the opposing end of the inclined lever 83, thus unclutching the pulley 48 from and applying the brake to the shaft 45, as previously described. This done the tray, with the pin filled backs is removed, and another tray containing blank backs D is placed on the carriage C.

ln order to position the carriage C so that the respective blank backs D contained in the new tray will be properly located beneath the pin setting heads to receive the initial pins, the pattern wheel is independently moved one step and the continuously rotating pulley 48 is clutched to its shait 45 and the brake released.

Accordingly, there is hung on the shaft 38 adjacent the pawl lever 41 an independent pawl lever 153 having` a pawl 154 in engagement with the teeth of the ratchet wheel The lever 153 is connected by means o'f a link 155 with an arm 156 fast on a r ck-shait 157 journaled in the supporting frame, at the tro-nt of the machine, which arm 156 is normally held in raised position by a spring 158 secured thereto and to the frame. Fast on the rock-shaft 157 is a forwardly-projecting pedal 159, which, when it is depressed by the foot oi the operator, eii'ects, through the connections described, a limited movement oit the pawl lever 153, whereby the pawl 154 partially rotates Athe ratchet wheel and effects, through the gearing, the requisite pre-setting movement oi the pattern wheel. A suitablydisposed brake band 16() acting on a brake drum 161 fast on the shaft 38 prevents the overrunning oi' the ratchet Wheel. See l? 1, 2. 3 and 4).

Simple and elicient means for supplying the brush pins and feeding them in .successive order to the pin setting heads 63 will now be descrioed, reference being had to Figs. 1, 2, 3., 4, 6, 7, and 13 to 23, inclusive.

162 (Figs. 1, 2, 3 and 4) designates an elevated hopper which is sustained bysuitable supporting rods 163 andV straps 164 so as to incline downwardly and rearwardly with respect to the machine, and into which hopper the brush pins are promiscuously thrown. The inclined bottom 165 ot the hopper is prettcrably of so that he con-dition of the pin contents df ,the hopper Vcan be readily observed. The inclination oi the hopper bottom l: is inserted.

is such that the pins freely gravitate therefrom into the upper end of an underlying tray 166 which inclines downwardly and forwardly.

ln the side walls of the tray 166 are'journaled the studs or shaft 167 of a transverse feed roll 168 over which the pins flow from 'the delivery end of the hopper to the tray. TheV roll, which rotates in close relation to the floor. of the tray, is provided with a series of peripherally-spaced rows of longitudinal grooves 169, whereof, in the present instance, there are sinr equally spaced rows, the number ot aligning grooves of each row corresponding with the number of pin setting heads. (See 1, 13 and 14).

Each ot the grooves 169 is of sufficient dimensions to receive a brush pin extending parallel to the axis of the roll, and hence as the roll rotates in the direction indicated by the arrow in Fig. 14, the pins deposited in the tray 166 in rear of the roll gravitate to the latter. Some of the pins severally register lonO-itudinally with the grooves in their path and are therefore carried by the roll in parallelism, and in endwise spaced relation, toward the lower or discharging end of the tray.

ln the present instance the feed roll 168 is continuously driven-from the pulley 48. To that end, the roll shaft is provided with a sheave 170 which is connected by a belt 171 with a sheave 172 on a suitably-disposed crossshait'17 3 having its bearings in arms 174 eX- tending from the supporting straps 164, and the shaft 173 is equipped -with a pulley 175 which is connected by means of a belt 176 with a hub extension 177 of the pulley 48. (See Figs. 2, 3 and 4).

rlhe discharge end of the tray 166 is formed with a series of tapering mouth portions 178 in line with the respective grooves 169 of the rotating feed roll, so as to receive the respective brush pins as they are delivered by the roll` The bottom of each mouth portion has therein a V-shaped depression 179, the apex of which is longitudinally slotted, as at 180, the slot opening at the lower edge of the mouth portion. Hence as the headed pins pass down the mouth portions of the tray, such pins are caused by their 'impact with the converging walls oi the mouth portions to slew around and enter the V-shaped depressions longitudinally of the latter. When the heads of the pins are rearward, the leading portion of the shank of each pin enters the'slot 180 of Athe adjacent .depression and reaches a position where its weight overcomes that of the headed end of the pin, in which case the pin gravitates to a pendant position with its head bridging' the slot. While the pin is in this psition it slides downward from the depression. (See Figs. 13, 14 and 15).

Declining from the respective depressions 179 are a series oi longitudinally slotted guide bars 181, the slots 182 of which are in alignof the shaft 45.

ment with those of the respective depressions, and hence'the suspended pins progress from the slots 180 of the depressions into the slots 182 and gravitate vertically and in close parallel relation to the lower ends of the guide bars.

The guide bars are supported at their upper ends by projecting lugs 183 on a bracket 184 secured to the tray 166, and at their lower ends by an inclined bar 185 having supporting legs 186 which are bolted to the bridge structure 47. Angle pieces 187 are preferably secured to the cross-bar against the adjacent guide bars so as to maintain the guide bars properly spaced. The inner walls of the slotted guide bars 181 are preferably recessed, as at 188, (Figs. 7 and 22) from the receiving ends of the slots to the vicinity of the lower supporting bar 185 so as to reduce the frictional resistance to the shanks of the pins during their' descent in the guide bars. The tops of the guide bars are oppositely-beveled, as at 189, for the greater part of their length to prevent the lodgment on the guide bars of brush pins which are not properly entered in the slots thereof. Such pins, as well as pins which may pass heads foremost along the depressions 179 in the discharge end of the tray 166, will generally roll off the inclined surfaces of the guide bars and fall into a suitably-supported underlying receptacle 190, (Figs. 3, 4 and 13), whence they may be manually returned to the hopper 162.

To obviate any liability of awry brush pins passing along the beveled upper surfaces of the guide bars 181 to the delivery ends thereof, transverse stripper plates 191, against which such pins in their descent impinge and by which they are deflected, are arranged to overlie the tops of the guide bars adjacent the transverse supporting bar 185, which plates are formed with angular base pieces 192 that are secured to the bar 185. (See Figs. 14 and 16).

The respective rows of pendant pins supported by the inclined guide bars 181 slide to the lower ends of the bars where a reciprocative horizontal cut-off bar 193 is operative to separate each succeeding leading pin from its row and position it above a depending guide tube 194 leading to a pin setting head 63.

The cut-off bar 193 is slidable longitudinally in spaced-guide bracket-s 294 secured to the outer guide bars 181, one end of the bar 193 being connected by a link 195 to an arm 196 of a horizontal lever which is fulcrumed, at 197, to a bracket 198 on the leg of the supporting bar 185. The other arm of the lever bears a roll 199 which, by the action of a suitably-disposed spring 200 against such arm,

is held in operative'contact with a cam 201 fast on the shaft 45, the contour of the cam being such that the lever is oscillated and the cut-off bar reciprocated during each rotation (See Fig. 6).

Opening at the inner edge of the cut-olf bar, in the vicinity of the respective guide bars 181, are a series of diagonal slots 202 the inlets of which, in the horizontal reciprocation of the bar, are moved alternately into and out of register with the slots 182 of the adjacent guide bars.

In Figs. 17 and 18, the relative positions of one of the guide bars and the adjacent inclined slot of the reciprocating cut-ofi' bar, are shown at the respective limits of movement of the latter; that is to say, in Fig. 17 the inlet of the inclined slot 202 is in register with the lower end of the slot 182 of the guide bar, thus permitting the leading pin of the adjacent row to enter the slot 202, and in Fig. 18 the inclined slot of the cut-off bar containing the pin has been moved to the right, thus positioning the inner or closed end of the inclined slot directly above the adjacent tube 194. In this movement the opposing inclined wall of the slot separates the leading pin from the row and the edge of the bar temporarily obstructs the descent of the remaining pins of the row until the inlet of the inclined slot 202 is again in register with the slot of the guide bar. In the stroke of the cut-off bar the inlet slot thereof cams the separated pin to the inner end of the slot, which end beingr enlarged, as at 203, permits the pin to drop freely therethrough in vertical position into the tube.

The cut-oitl bar 193 is preferably provided with tappet members 204 which extend latj erally adjacent the respective guide bars 181, and hence during the reciprocation of the bar 193 the tappets repeatedly strike and jar the opposing guide bars, thereby ensuring the efiicient descent of the pendant pins in the guide bars. (See Figs. 6, 17 and 18).

The respective tubes 194 lead to the series of pin-setting heads 63 which are supported in spaced relation by the brackets 61, as previously mentioned. Each of these heads includes vertically-disposed spaced side plates 205 which are secured to the lower forward end of the adjacent bracket 61 and supp-ort between them a pair of depending jaws 206 which are pivoted at their upper outer portions to the plates, as at 207, Figs. 19, 20 l and 21. The inner faces of the jaws are vertically grooves for the passage of the pin driving member 62 of the plunger 59, which member thus reciprocates longitudinally between the jaws. yieldably closed by means of a suitable spring 208 whi ch is attached to studs 209 projecting from the respective aws through slots 210 in the adjacent plate 205. One of the jaws is provided with an inclined pin passage 211 leading from the top of the jaw to the vertical groove of the latter immediately below the foot of the pin driving member 62 when such member is at the top of its stroke, the upper end of the passage being flared to receive 1 The jaws are maintained l GLS through the connections previously described to the carriage C so as to position the latter in its initial position. Thereupon, the operator properly turns the handle 107 of the rod 105 to unlock the bolt 71, thus retracting the bolt 'from the path of the clutch'lever arm 68 and effecting the release of the bralre lever 99. The clutch lever immediately engages a block 630- of the clutch member 620 thereby clutching the pulley 48 to the shaft 115, whereupon the operation of the mechanisms continues as before, it being obvious that the latch linger 75, upon the retraction of the bolt 71, automatically engages the lateral slot 74 of the bolt and holds the bolt in retracted position until the tappet 85 on the pattern wheel again strikes the opposing lever 83; and so on. Y

It is to be understood that my invention is not limited to the particular construction disclosed, as the mechanisms may be modified within the principle o-f the invention and the scope of the appended claims.

I claim- 1. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage comprising two associated frames,'whereof one is movable transversely and whereof the other is mounted on the lirst-named frame for movement longitudinally thereof and includes means whereby a holder 'for elastic backs can be detachably secured to the second-named frame in co-operative relation to the setting head, carriage actuating mechanism for imparting the described movements to the respective frames, whereby combined transverse and longitudinal motion is imparted to the said holder, and means for automatically stopping the carriage-actuating and pin-driving` mechanisms when a back is supplied with pins.

2. The combination with a pin-setting head and pin-driving` mechanism co-operating therewith, of a pin back supporting carriage, mechanism, including pawl and ratchet devices, for transversely and longitudinally actuating said carriage to position succeeding points of the back in co-operative relation to the setting head, means for automatically stopping the carriage-actuating and pindriving mechanisms when aback is supplied with pins, a supplemental pawl element coacting with the ratchet device, and a pedal connected with said pawl element and ar 1anged and adapted to be operated to impart an additional movement to the arrested ratchet device.

3. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head, said carriage comprising two associated frames whereof one is movable transversely and whereof the other is mounted on the first-named vframe for movement longitudinally thereof and includes means whereby Va holder for elastic backs can be detachably secured to the second-named frame, a rotary pattern element, actuating mechanism therefor, and means, including connections between said element and the respective frames, whereby the described movements are imparted to the frames and combined transverse and longitudinal motion is imparted to a back holder on the carriage.

Li. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head, vsaid carriage comprising two associated frames whereof one is movable transversely and whereof the other is mounted on the first-named frame for movement longitudinally thereof and includes means whereby a holder for elastic backs can be detachably secured to the second-named frame, a rotary pattern element, actuating mechanism therefor, means, including connections between said element and the respective frames, whereby the described movements are imparted to the frames and combined transverse and longitudinal motion is imparted to a back holder on the carriage, means for automatically stopping the pattern element when the back is supplied with pins, and means under the control of the operator for eifecting the resetting of the carriage at the starting point.

5. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head, said carriage comprising two associated frames whereof one is movable transversely and whereof the other is mounted on the first-named frame for movement longitudinally thereof and includes means whereby a back holder can be detachably secured to the second-named frame, yielding retracting means tending to maintain said frames in normal relative positions, a rotary pattern element, actuating mechanism therefor, and connections between said element and the respective frames whereby said frames are moved in opposition to the action of their respective retracting means and combined transverse and longitudinal motion is thus imparted to a back holder supported on the carriage.

6. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head and including means whereby a bach holder can be detachably mounted on said carriage, means for imparting longitudinal and transverse movements to said carriage and a holder thereon, said latter means comprising'a rotary pattern element and operative connec- 'driving loosely the lower end of the guide tube 194. The portions of the jaw grooves with which the pin passage 211 communicates are of somewhat greater diameter than the driving member and are of sufficient length to receive and accommodate av pin which is vertically delivered thereto by the guide tube when the member is at the upper limit of its stroke. Hence the pin is positioned, head upward, in the path of the descending plunger which forces the pin down and from the setting head into the underlyingr elastic back D and through the aligning perforation Z in the bed-plate 108 of the back supporting tray. T ie head of the pin in its passage, is yieldingly held by and between the grooved jaws, thereby ensuring the vertical position of the pin until it is fully entered in the underlying back D. (See Fig. 19).

The general operation of the hereinbefore described machine is as follows:

Assuming that a tray structure (F ig. 10) supplied with elastic backs D is supported on the carriage C, and that the shaft 45 is clutched to and thereby continuously driven by the pulley 48, (the bolt 71 being retracted from the path of the clutch lever arm 68 and being temporarily locked by the enga-ging latch linger 75), the cam 49 on said shaft effects, in conjunction with the retracting spring 51, the vertical reciprocation of the bar 43 and link 42, thus oscillating the pawi lever 41 which, in turn, intermittently rotates the ratchet 39 from which motion is transmitted through the gears 36, 37 to the pattern wheel 33. This wheel in its rotation effects the variable oscillation of the rockarms 133, 134. The motion of the arm 133 is timed to actuate the reciprocating bar 138 in a manner to impart through the arm 139 and link 140, in conjunction with the weight 129, successive movements to the associated frames of the carriage C transversely of the table. The motion of the arm 134 is timed to actuate the lever 143, and the crank lever 149, 151, in such manner that the roll 152 bears against the end arm 122 of the carriage frame y, thereby effecting, in coeoperation with the spring 128, successive movements of the frame jz/ longitudinally of the table. The resultant of the relative motions of.' the two carriage frames positions succeeding points in the areas of the contained backs D beneath the respective pin setting heads 63 wherein the pins are supported in vertical position.

In each dwell of the carriage C, the crank 52 on the shaft 45 actuates the rock-shaft 55 through the link 53 and arm 54, thus effecting through the arms 57 the simultaneous vertical reciprocation of the pin-driving plungers in the setting heads 63 and perforce driving the opposing pins into and through the positioned underlying points of the respective backs. The pin-driving operation is repeated at succeeding points in the .areas of the backs until the respective backs have been fully supplied with pins, as hereinbefore explained.

The peripherally-grooved feed-roll 168 for the pins delivered by the hopper 162 to the tray 10G is continuously revolved by the belt and pulley connections from the pulley 48, thus feeding the pins severally into the respective discharge mouths 178 of such tray, whereby they longitudinally enter the V-depressions 179 and gravitate vertically into the slots 180 of the latter. Thence the pendant pins slide in rows down the respective slotted guide bars 181 until the leading pins are intercepted by the cut-off bar 193 at the lower ends of the guide bars. The cut-off bar is longitudinally reciprocated through its link and spring-actuated lever connections with the cam 201 on the shaft 45, the cut-ofi'i bar being reciprocated (moved two strokes) during each rotation of said shaft.

In one stroke ofthe cut-off bar the diagonal slots 202 thereof are positioned to receive the lea-:ling pins of the respective rows, and in the next succeeding stroke the bar is positioned to interrupt the feed of the pin rows and transfer such leading' pins to the adjacent guide tubes 194, whence they descend to the respective inserting heads 63 in which the acting portions of the pin-driving plungers reciprocate. The yielding grooved jaws 206 o'f the setting heads grasp the heads of the associated pins and ensure the accurate vertical passage of the pins to and through the opposing elastic backs D, as previously eX- plained.

is the pattern wheel approaches a complete rotation the lateral tappet on the wheel strikes the opposing lever 83, thereby actuating the arm 78 of the latch lever 7G and effecting the partial rotation of the latter. Thus the latch finger 75 is retracted from thc slot 74 in the abutment bolt- 71 and the bolt unlocke i. Coincidentally, the arm of the lever 88 is swung laterally and the attached bolt 71 is moved into the path of the longer arm of the clutch lever. This arm, riding on the bolt, is actuated to disengage the clutch tooth G4 from the opposing block 630 of the clutch member 620 on the pulley 48. At the same time the brake lever 99 is applied to the brake-disk 67 on the shaft 45, thus instantly stopping the rotation of the latter.

The operator then removes the tray carrying the series of pin lillcd backs D and applies a tray, supplied with blank backs, to the carriage C. He then depresses the pedal 159, thus through the lever and link connections with the pawl-lever 153, actuating said pawl lever to effect an additional step of the ratchet wheel. This step is transmitted to the pattern wheel while the shaft 45 is idle, which wheei, in turn, transmits the motion tions between said element and the carriage, a shaft, a continuously driven element loose thereon, a clutch normally connecting` said driven element to the shaft, operative connections between said shaft and the pattern element, operative connections between said shaft and the pin-drivine mechanism, and means whereby the cluten is automatically actuated to disconnect the said driven element and shaft.

7. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head Vand including means whereby a back holder can be detachably mounted on said carriage, means for imparting longitudinal and transverse movements to said carriage and a holder thereon, said latter means comprising a rotary pattern element and operative connections between said element and the carriage, a shaft, a continuously driven element loose thereon, a clutch normally connecting'said driven element to the shaft, operative connections between said shaft and the pattern element, operative connections between saidA shaft and the pin-driving mechanism, a clutch-releasing member movable into and from the path of the clutch, and means under the control of the pattern element for operating said member to disconnect the driven element and shaft when the back is supplied with pins.

8. The combination with a pin-setting head and pindriving mechanism co-operating` therewith, of a carriage supported below and movable relatively to the pin-set ting head and ,including means whereby a back holder can be detachably mounted on said carriage, means for imparting longitudinal and transverse movements to said carriage and a back holder thereon, said latter means comprising a rotary pattern element and operative connections between said element and the carriage, a shaft, a continuously driven element loose thereon, a clutch normally connecting said driven element to the shaft, operative connections between said shaft and the pattern element, operative conuections between said shaft and the pin-driving mechanism, a clutch-releasing member movable into and from the path of the clutch, means under the control of the pattern element for operating said member to disconnect the driven element and shaft when the back is supplied with pins, and means, under the control of the operator, for effecting the resetting of the carriage at the starting point when the driven element and shaft are disconnected.

9. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head andV including means whereby a back holder can be detaehably mounted on said carriage, means for imparting longitudinal and transverse movements to said carriage and a back holder thereon, said latter means comprising a rotary pattern element and operative connections between said element and the carriage, a shaft, a continuously driven element loose thereon, a clutch normally connecting said element to the shaft, operative connections between said shaft and the pattern element, operative connections between said shaft and the pin-driving mechanism, a clutch-releasing member movable into and from the path of the clutch, means under the control of the pattern element for operating said member to disconnect the driven element and shaft when the back is suppliedV with L. ins, a movable latch element having' a member for engaging and temporarily locking the clutch-releasing member in reti cted position, a second movable element having a shifting member connected with the clutch-releasing member, said movable elements also having eo-acting members whereby when the latch element is actuated motion is transmitted to the other movable element, means for automatically actuating the said latch element to effect the retraction and temporary locking ofthe clutch-releasing member, and means under the control of the operator for actuating the said latch element to effect the unlocking of the clutchreleasingmember and its projection into the path of the clutch.

l0. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head and including means whereby a back holder can be detachably mounted on said carriage, means for imparting longitudinal and transverse n'1oven'1ents to Asaid carriage and a back holder thereon, saidmeans comprising a rotary pattern element and operative connections between said element and the carriage, a shaft, a continuously driven element loose thereon, a clutch normally connecting said driven element to the shaft, a brake for said shaft, operative connections between said shaft and the pattern element, operative connections between said shaft and the pin-driving mechanism, and means whereby the clutch and brake are automatically operated to disconnect the said driven element and shaft and to apply the brake to the shaft when a back is supplied with pins.

ll. A back-supporting tray structure for pin brush machines comprising a bed plate having a recessed portion of suitable size and form to receive an elastic back into which the pins are to be driven, the bottom of said recessed portion having perforations therein corresponding in number and position with the points of entry for the pins in the back,

and a cover on said bed plate having an opening corresponding in form and position with, but ot' slightly less area than the back, whereby when the cover is closed upon the bed plate the edge of the opening overhangs the edge of the recess thus holding the contained back uniformly within the recessed portion of the bed plate.

12. A pin-brush machine having a pinsetting head and pin-driving mechanism cooperating therewith, said pin-driving mechanism including a depending reciprocating driving member and said pin-setting head comprising a pair of pendant complementary jaws grooved on their opposing faces for the passage of the driving member, and resilient means for maintaining said jaws in closed relation.

13. A pin-brush machine having a pinsetting head and pin-driving mechanism cooperating therewith, said pin-driving mechanism including a depending driving member, and said setting head comprising a pair ot pendant jaws grooved on their opposing faces to receive a pin and to permitthe passage of the driving member, and resilient means maintaining said jaws in normally closed relation, the grooved surfaces olt the jaws being enlarged between the ends ot the grooves to aford an elongated chamber lior the reception of a pin, and one of said passages having a pin-delivery passage leading to the said chamber.

14. In a pin-brush machine having a pinsetting head and pin-driving mechanism cooperating therewith, a guide member for a row ot pendant pins, a feed tube located adjacent the delivery end of sa( guide member and leading to the setting head, a cut-ofi member having a diagonal slot which by actuation of the cut-off member is shifted into and out of registry with the delivery end ot the said guide member so as to receive each succeeding leading pin of the row and transfer it to the feed tube, and means for pe.- riodically actuating said cut-olf member.

15. In a pin-brush machine having a pinsetting head and pin-driving mechanism eooperating therewith, a guide member tor a row of pendant pins, a feed tube located adjacent the delivery end of the guide member and leading to the setting head, a cut-oil' bar reciprocative across the delivery end ol: the guide member and having a diagonal slot opening at the inner edge of the bar which slot. in each reciprocation ot the `ar is moved into and out ot' registry with the delivery end of the said guide member so as to receive each succeeding leading pin ot the row and transfer it to the feed-tube. and means for periodically reciprocating said cut-oli' bar.

16. In a pin-brush machine having a pinsetting head and pin-driving mechanism cooperating therewith, a pin-supply tray having a tapering mouth portion with a V- shaped longitudinally slotted bottom depress'A n through which the pins are discharged from the tray, means for feeding pins singly to sai-d n'ionth portion, a longitudinally slotted pin-guide member communicating with the slots olg the depressions of the said mouth portion and extendiiig toward the pinsetting head, means whereby the leading pins in the guide member are successively ren'ioved il .ere'lronn and means whereby said pins are positioned in the pin-setting head.

l?. ln a pin-brush machine having a pinsetting head and pin-driving mechanism cooperating therewith, a pin-supply uray having a tapering mouth portion with a V- shaped longitiulinally slotted bottom depresf-` rn, means lor tending pins singly to said niouth portion, a longitiidinally slotted pinguid-e member coimnunicating with the slot of the depression ot the said mouth portion and extending toward the pin-setting head, s. feeding means ennnprising a transverse :l roll having spaced peripheral grooves iarallel to 'the axis ot' the roll, each groove being propoztioned to receive and feed single pins, and means whereby the leading` pins in t" e guide member are successively removed therefrom, s. d means whereby said pins are positioned in the pin-setting head.

18. lin a pin-brush machine having a pinsctting head and pin-driving mechanism co- Vperating therewith, a pin-supply tray having a tapering mouth portion with a V- shaped longitudinally slotted bottom depression, means 'tor jfeeding pins singly to said monta portion, a longitudinally slotted pin- ;gjuide member conm'iunicating with the slot in the depression. oi the said mouth portion and extending toward the pin-setting head, a guide tube interposed between the delivery end of the slotted guide member and the setting` head, and a reciprocative eut-oll member having a diagonal slot which, by actuation of the cut-oil member, is moved into and ont ol registry with the delivery end ot' the slot oit the guide member, thereby removing cach succeeding leading pin from the guide slet and transferring it to the feed tube.

19. In a pin-brush machine having a pinsettine` head and pin-driving mechanism cooperating therewith, a pin-supply tray having a` transverse feed roll therein rotatable adjacent the bottom o't the tray, said roll having spaced j'ieripheral grooves parallel to the a oif the roll, each groove being proportioned 'to receive and Yfeed single pins, and n'ieans tor rotating said feed roll.

20. ln a pin-brush machine, the combinatie-n of an inclined jiin-guide bar having a longitudinally extending slot therein and having also oppositcly inclined upper surl aces at the respective sides ot the slot, means 'for supplying pendant headed pins to the upper end ot the slot, and a pin-receptacle located beneath the guide bar.

21. In a pin-brush machine, the combination of an inclined pin-guide bar having a longitudlinally extending slot therein and having also oppositely-inclined upper surfaces at the respective sides of the slot, means for supplying pendant pins to the upper end of the slot, a pin receptacle located beneath the guide bar, and a stripper member overhanging the bar in rear of the delivery end thereof.

22. In a pin-brush machine, the combination of an inclined pinguide bar having a longitudinally extending slot therein, means for supplying pendant pins to the upper end of the slot, a cut-off member at the lower end of the slot, means on said member for jarring said guide-bar, and means for reciprocating said cut-off member.

23. The combination with a pin-setting head and pindriving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pinsetting head, a removable holder including a pen forated bed-plate for backing an elastic brush back, the perforations of said plate corresponding with the position of the pins to be inserted in the back, cooperating centering means on the holder and carriage whereby the holder can readily be positioned on the carriage, and actuating mechanism for imparting combined trans-verse and longitudinal motion to the carriage and the backholder thereon to sucessively position the perforations in the bed-plate in co-operative relation to the pin-setting head.

24. The combination with a pin-setting head and pin-driving mechanism co-operating therewith, of a carriage supported below and movable relatively to the pin-setting head, a removable holder including a perforated bed-plate for backing an elastic brush back, the perforations of said plate corresponding with the position of the pins to be inserted in the back, co-operating centering means on the holder and carriage whereby the holder can readily be positioned on the carriage, actuating mechanism for imparting combined transverse and longitudinal mot-ion to the carriage and the back-holder thereon to successively position the perforations in the bed-plate in co-operative relation to the pinesetting head, and means for automatically stopping the carriage-actuating and pin-driving mechanisms when a back is supplied with pins.

25. The combination with a pin-setting head and pin-driving mechanism co-operating` therewith, of a carriage supported below and movable relatively to the pin-setting head, a removable holder including a perforated bed-plate for backing an elastic brush back, the perforations of said plate corresponding with the position of the pins to be inserted in the back, co-operating centering means on the holder and carriage whereby the holder can readily be positioned on the carriage, actuating mechanism for imparting combined transverse and longitudinal motion to the carriage and the back-holder thereon to successively position the perforations in the bed-plate in co-operative relation to the pin-setting head, means for automatically stopping the carriage-actuating and pin-driving mechanisms when a back is supplied with pins, and means, under the control of the operator, for eii'ecting the resetting of the carriage at the starting point.

26. The combination with a pin-setting head and-pin-driving mechanism co-operating therewith, of a carriage comprising two associated frames, whereof one is movable transversely and whereof the other is mounted on the first-named frame for movement longitudinally thereof, a holder removable includingV a perforated bed-plate for backing an elastic brush back, the perforations of said plate corresponding with the position of the pins to be inserted in theback, cooperating centering means on the holder and carriage whereby the holder can readily be positioned on the carriage, and carriage actuating mechanism for imparting the de scribed movements to the respective frames, whereby combined transverse and longitudinal motion is imparted to the said holder to successively position the perforations in the bed-plate in co-operative relation to the pin-setting head.

Signed at Frederick in the county of Frederick and State of Maryland this iirst day of October, A. D. 1929. y

WILLIAM D. LIPPS. 

